Home / 323,726,627.20-485,589,940.80-105,397,542.40

Finding the Fourth Proportional to 323,726,627.20, 485,589,940.80 and 105,397,542.40

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Solution

The fourth proportional to 323,726,627.20, 485,589,940.80 and 105,397,542.40 is: 158,096,313.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,726,627.20 : 485,589,940.80 = 105,397,542.40 : x
  2. Step 2: Convert to fraction form
    323,726,627.20/485,589,940.80 = 105,397,542.40/x
  3. Step 3: Cross multiply
    323,726,627.20x = 485,589,940.80 × 105,397,542.40
  4. Step 4: Simplify right side
    323,726,627.20x = 51,179,986,374,481,496
  5. Step 5: Solve for x
    x = 51,179,986,374,481,496/323,726,627.20
  6. Step 6: Final answer
    x = 158,096,313.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.